Fade In and Out Dynamically Loaded Images

I currently have achieved a look on my header using the timeline to fade in and out a series of photographs and make them flash like a camera flash between each photo. I have created a .php file to pass on the location of up to 10 files to flash using img1, img2, img3, etc as the var names. I would like to be able to change/replace the existing files so they would change in the header without having to edit the .fla file itself. little help? thanks!

this is the .php file…

Dynamic Images .php for Flash

this is the location of the header…

The Images On The Right